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In article .net, wrote:
Thus spake GregS:

if not, get some stuff at The Home Depot, CRC 2-26 Lubricant, almost no
smell, its plastic safe, multi purpose, presision lubricant, improves
electrical properties, as read on can. Really cheap too, but slightl more
than WD-40. They also have a no residue electronic contact cleaner which is
also cheap for a large supersized can.

Thanks, Greg. I think WD-40 is great for most such applications (WD, I'm
told, stands for "water displacer"), but if there's any chance I'll be
sniffing that smell for years, I'll try the CRC route.

General Q: these products are water displacers. The reason these products
stop corrosion is that they remove all traces of moisture? After that, if the
green stuff (corrosion) is not causing a short, the corrosion should not
continue, as long as moisture is not reintroduced?

Green is most easily removed by water. WD-40 leaves a varnish like film when dry.
Not really good for contacts. There are more products leaving a film when dry. Bullfrog
makes a range of cleaners and evaporative film anti corrosion inhibitors. A molecular
layer of material is deposited on metal to prevent corrosion. Many switches
come with the piece of paper with an evaporative product.

greg